Category Products

  • SKU: MH1114C
  • 3 in stock
  • Ships within 10 business days

McDonnell & Miller model number 750T-120 is an electronic low water cut-off control unit for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features an automatic reset, test switch, and LED low water indicator light. It is for use with McDonnell & Miller remote sensors (SKUs MI1550 and MI1551).

Online Price: $155.94
Regular Price: $200.00

  • SKU: MH1114D
  • 4 in stock
  • Ships within 10 business days

McDonnell & Miller model number 750MT-120 is an electronic low water cut-off control unit for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. It is for use with McDonnell & Miller remote sensors (SKUs MI1550 and MI1551).

Online Price: $159.85
Regular Price: $205.00

  • SKU: MH1114E
  • 7 in stock
  • Ships within 10 business days

McDonnell & Miller model number 751P-MT-120 is an electronic low water cut-off control unit, with built-in PA-800 probe, for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features a manual reset and test switch.

Online Price: $218.32
Regular Price: $280.00

  • SKU: MH1114F
  • Ships within 10 business days

McDonnell & Miller model number 751P-MT-U-120 is an electronic low water cut-off control unit, with built-in PA-800U probe, for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features a manual reset and test switch.

Online Price: $230.02
Regular Price: $295.00

  • SKU: MH1114G
  • Ships within 10 business days

McDonnell & Miller Series 751P 120V probe-type low water cut-off with short probe that provides protection against low water conditions for commercial and industrial applications.

Online Price: $214.43
Regular Price: $275.00

  • SKU: MH1114H
  • 2 in stock
  • Ships within 10 business days

McDonnell & Miller Series 751P 24V probe-type low water cut-off with standard probe that provides protection against low water conditions for commercial and industrial applications.

Online Price: $214.43
Regular Price: $275.00

  • SKU: MH1114J
  • Ships within 10 business days

McDonnell & Miller Series 751P 24V probe-type low water cut-off with short probe that provides protection against low water conditions for commercial and industrial applications.

Online Price: $214.43
Regular Price: $275.00

  • SKU: MH1172A
  • 1 in stock
  • Ships within 10 business days

McDonnell & Miller model number PS-801-M-24 is an electronic low water cut-off control unit, with probe, for use on steam boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $233.91
Regular Price: $300.00

  • SKU: MH1172C
  • Ships within 10 business days

McDonnell & Miller model number PS-801-M-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $241.71
Regular Price: $310.00

  • SKU: MH1173A
  • Ships within 10 business days

McDonnell & Miller model number PSE-802M-24 is an electronic low water cut-off control unit, with probe, for use on steam boilers. This cut-off unit is 24 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $233.91
Regular Price: $300.00

  • SKU: MH1173D
  • Ships within 10 business days

McDonnell & Miller model number PS-802-M-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 24 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $241.71
Regular Price: $310.00

  • SKU: HY1005
  • 11 in stock
  • Ships within 1 business day

Hydrolevel Safguard model 550SV low water cut-off with manual reset, test button, and short probe. This unit interrupts power in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation and lock-out function without lowering the water level.

Online Price: $185.07
Regular Price: $211.50

  • SKU: HY1006
  • 1 in stock
  • Ships within 1 business day

Hydrolevel Safguard model 650SV low water cut-off with automatic reset, test button, and short probe. This unit interrupts power immediately in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation without lowering the water level.

Online Price: $177.19
Regular Price: $202.50

  • SKU: HY1007
  • 4 in stock
  • Ships within 1 business day

Hydrolevel Safguard model 550 low water cut-off with manual reset and test button. This unit interrupts power in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation and lock-out function without lowering the water level.

Online Price: $185.07
Regular Price: $211.50

  • SKU: HY1008
  • 2 in stock
  • Ships within 1 business day

Hydrolevel Safguard model 650 low water cut-off with automatic reset and test button. This unit interrupts power immediately in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation without lowering the water level.

Online Price: $177.19
Regular Price: $202.50

  • SKU: HY1010
  • 3 in stock
  • Ships within 1 business day

Hydrolevel Safguard model 170 low water cut-off for 160 psi. This LWCO is 120 VAC, has a switching capacity of 5.8 FLA and 34.8 LRA, and has SPDT switch contacts. The 170 Series interrupts power immediately in a low water condition and automatically restarts the burner on return of normal water level.

Online Price: $107.50
Regular Price: $122.86

  • SKU: HY1011
  • 3 in stock
  • Ships within 1 business day

Hydrolevel Safguard model 170SV low water cut-off with short probe for 160 psi. This LWCO is 120 VAC, has a switching capacity of 5.8 FLA and 34.8 LRA, and has SPDT switch contacts. The 170 Series interrupts power immediately in a low water condition and automatically restarts the burner on return of normal water level.

Online Price: $107.50
Regular Price: $122.86

  • SKU: HY1001
  • Ships within 1 business day

Hydrolevel Safgard 500 24 volt low water cut off with a manual reset, burner circuit test button, and LED indicating lights for hot water boilers.

Online Price: $185.07
Regular Price: $211.50

  • SKU: HY1002
  • Ships within 1 business day

Hydrolevel Safgard 400 24 volt low water cut off with 15-second burner off delay, 30-second burner on delay, automatic rest, and low water indicating light for steam boilers.

Online Price: $181.92
Regular Price: $207.90

  • SKU: HY1003
  • 6 in stock
  • Ships within 1 business day

Hydrolevel Safgard 550P 120 volt low water cut off with long nut, manual reset, burner circuit test button, and LED indicating lights for hot water boilers.

Online Price: $191.37
Regular Price: $218.70

  • SKU: HY1004
  • 4 in stock
  • Ships within 1 business day

Hydrolevel Safgard 450 120 volt low water cut off with 15-second burner off delay, 30-second burner on delay, automatic rest, and low water indicating light for steam boilers.

Online Price: $181.92
Regular Price: $207.90

  • SKU: HY1014
  • 3 in stock
  • Ships within 1 business day

Hydrolevel Safgard 750 120 volt low water cut off with a manual reset, 30-second lock-out and LED indicating lights for hot water boilers.

Online Price: $177.19
Regular Price: $202.50

  • SKU: HY1015
  • 1 in stock
  • Ships within 1 business day

Hydrolevel Safgard 750SV 120 volt low water cut off with a manual reset, short probe, 30-second lock-out and LED indicating lights for hot water boilers.

Online Price: $177.19
Regular Price: $202.50

  • SKU: HY1035
  • 2 in stock
  • Ships within 1 business day

Hydrolevel Cyclegard CG400-2090 24 volt low water cut off with intermittent level test (preformed every 20 minutes for 90 seconds), 15-second burner off delay, 30-second burner on delay, and low water indicating light for steam boilers.

Online Price: $181.92
Regular Price: $207.90

  • SKU: HY1050
  • 1 in stock
  • Ships within 1 business day

Hydrolevel Cyclegard CG450-1560 120 volt low water cut off with intermittent level test (preformed every 15 minutes for 60 seconds), 15-second burner off delay, 30-second burner on delay, and low water indicating light for steam boilers.

Online Price: $181.92
Regular Price: $207.90

  • SKU: HY1055
  • 1 in stock
  • Ships within 1 business day

Hydrolevel Safgard 24SV 24 volt low water cut off with automatic rest, a short probe, and alarm contacts for hot water boilers.

Online Price: $107.50
Regular Price: $122.86

  • SKU: HY1060
  • Ships within 1 business day

Hydrolevel 24 volt compact low water cut-off for residential boilers with automatic reset, burner circuit test button, power and low water lights, and wire harness.

Online Price: $100.02
Regular Price: $114.30

  • SKU: HY1065
  • Ships within 1 business day

Hydrolevel 120 volt low water cut-off for residential boilers with automatic reset, burner circuit test button, power and low water lights, and wire harness.

Online Price: $100.02
Regular Price: $114.30

  • SKU: HY1070
  • Ships within 1 business day

Hydrolevel 24 volt low water cut-off with automatic reset and EL1214 sensing probe.

Online Price: $107.50
Regular Price: $122.86

  • SKU: HY1075
  • Ships within 1 business day

Hydrolevel 24 volt low water cut-off with automatic reset, test button and light, and EL1214 sensing probe.

Online Price: $177.19
Regular Price: $202.50

  • SKU: HY1080
  • Ships within 1 business day

Hydrolevel 24 volt low water cut-off with manual reset (after 30 seconds) and EL1214 sensing probe.

Online Price: $177.19
Regular Price: $202.50

  • SKU: HY1085
  • Ships within 1 business day

Hydrolevel 24 volt low water cut-off with manual reset (after 30 seconds) and EL1214-SV sensing probe.

Online Price: $177.19
Regular Price: $202.50

  • SKU: HY1090
  • Ships within 1 business day

Hydrolevel 24 volt non-cycling steam primary low water cut-off with automatic reset (after 15 second delay) and EL1214-R sensing probe for remote mounting control box.

Online Price: $189.79
Regular Price: $216.90

  • SKU: HY1125
  • Ships within 1 business day

Hydrolevel 120 volt non-cycling steam primary low water cut-off with automatic reset (after 15 second delay) and 60-second foam compensating intermittent level test every 20 minutes.

Online Price: $205.54
Regular Price: $234.90

  • SKU: HY1130
  • Ships within 1 business day

Hydrolevel 120 volt low water cut-off with manual reset (after 30 seconds), test button and light, and EL1214-R sensing probe for remote mounting control box.

Online Price: $192.94
Regular Price: $220.50

  • SKU: WR1005
  • Ships within 1 business day

Warrick general purpose 120v low water cut-off featuring a 1/16" standoff panel, power outage, and 10,000 ohm factory-set sensitivity.

Online Price: $180.00
Regular Price: $270.00

  • SKU: WR1015
  • Ships within 1 business day

Warrick general purpose 120v low water cut-off featuring a 1/16" standoff panel, power outage, 10,000 ohm factory-set sensitivity, and 6-second decreasing level time delay.

Online Price: $187.79
Regular Price: $281.68

  • SKU: WR1020
  • Ships within 1 business day

Warrick general purpose 120v low water cut-off featuring a retrofit standoff style, NEMA 1 enclosure, normally-closed pushbutton, and 10,000 ohm factory-set sensitivity.

Online Price: $268.88
Regular Price: $403.32

  • SKU: WR1025
  • Ships within 1 business day

Warrick general purpose 24v low water cut-off featuring a 1/16" standoff panel, 10,000 ohm factory-set sensitivity, and power outage.

Online Price: $217.79
Regular Price: $326.68

  • SKU: WR1030
  • Ships within 1 business day

Warrick general purpose 120v low water cut-off featuring a retrofit standoff style, NEMA 1 enclosure, a normally-closed pushbutton, power outage, and 26,000 ohm factory-set sensitivity.

Online Price: $268.88
Regular Price: $403.32

  • SKU: WR1075
  • Ships within 1 business day

Warrick general purpose 24v low water cut-off featuring a 1/16" standoff panel and 10,000 ohm factory-set sensitivity.

Online Price: $164.46
Regular Price: $246.68

  • SKU: WR1080
  • Ships within 1 business day

Warrick general purpose 24v low water cut-off featuring a 1/16" standoff panel, 10,000 ohm factory-set sensitivity, reset function, normally-closed pushbutton, power outage, and test feature.

Online Price: $222.22
Regular Price: $333.32

  • SKU: WR1085
  • Call for lead time

Warrick general purpose 120v low water cut-off featuring a 10,000 ohm factory-set sensitivity, 1/8" standoff panel style, and power outage.

Online Price: $180.00
Regular Price: $270.00

  • SKU: WR1090
  • Call for lead time

Warrick general purpose 120v low water cut-off featuring a 10,000 ohm factory-set sensitivity, retrofit standoff panel style, power outage, normally-closed pushbutton, and retrofit plate.

Online Price: $204.46
Regular Price: $306.68

  • SKU: WR1095
  • Ships within 1 business day

Warrick general purpose 120v low water cut-off featuring a 26,000 ohm factory-set sensitivity, 1/8" panel standoff panel style, and power outage.

Online Price: $183.34
Regular Price: $275.00

  • SKU: WR1100
  • Ships within 1 business day

Warrick general purpose 120v low water cut-off featuring a 26,000 ohm factory-set sensitivity and screw mount standoff panel style.

Online Price: $164.46
Regular Price: $246.68

  • SKU: WR1105
  • Ships within 1 business day

Warrick general purpose 120v low water cut-off featuring a 26,000 ohm factory-set sensitivity, retrofit standoff panel style, reset function, normally-closed pushbutton, and test feature.

Online Price: $182.22
Regular Price: $273.32

  • SKU: WR1110
  • Ships within 1 business day

Warrick 120v low water cut-off plug-in module featuring a 10,000 ohm factory-set sensitivity, 11 pin octal socket style, reset function, normally-closed pushbutton, test feature, and power outage.

Online Price: $327.79
Regular Price: $491.68

  • SKU: WR1115
  • Ships within 1 business day

Warrick 120v low water cut-off plug-in module featuring a 10,000 ohm factory-set sensitivity, 11 pin octal socket style, and power outage.

Online Price: $285.55
Regular Price: $428.32

  • SKU: WR1120
  • Call for lead time

Warrick 120v low water cut-off plug-in module featuring a 10,000 ohm factory-set sensitivity, 11 pin octal socket style, normally-closed pushbutton, and power outage.

Online Price: $298.88
Regular Price: $448.32

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